EP1142826A1 - Vehicle with running mechanism and lifting mechanism - Google Patents
Vehicle with running mechanism and lifting mechanism Download PDFInfo
- Publication number
- EP1142826A1 EP1142826A1 EP01400312A EP01400312A EP1142826A1 EP 1142826 A1 EP1142826 A1 EP 1142826A1 EP 01400312 A EP01400312 A EP 01400312A EP 01400312 A EP01400312 A EP 01400312A EP 1142826 A1 EP1142826 A1 EP 1142826A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- vehicle
- running
- control
- working mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/24—Electrical devices or systems
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Transportation (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
Description
- The present invention relates to a vehicle composed of a running mechanism having a running motor and a lifting mechanism having a lifting motor. More particularly, the present invention relates to a vehicle which can change a control system of a lifting mechanism.
- An electric vehicle is used in a work area in a factory. An electric type forklift is used as the electric vehicle, for example. The forklift is composed of a running mechanism and a lifting mechanism. The running mechanism is composed of a running motor as a driving source for running of the forklift, an accelerating mechanism and a braking mechanism. The lifting mechanism is composed of a lifting motor as a driving source for a lifting operation by the forklift, an operation lever, and a hydraulic pressure mechanism.
- The running control circuit carries out the control of the running motor. The lifting control circuit carries out the control of the lifting motor.
- The lifting control circuit is classified based on a driving system of the lifting motor. The types of driving system of the lifting motor may be classified into a manual lever contactor system, a manual lever chopper system and a joystick chopper system.
- The lifting control circuit of the manual lever contactor system monitors a switch in conjunction with the movement of an operation lever operated by an operator of the forklift. The lifting control circuit drives the lifting motor in accordance with the turning on or turning off of the switch. The lifting control circuit of the contactor system realizes the control of only the two states, start and stop of the lifting motor.
- The lifting control circuit of the chopper system monitors a chopper which carries out voltage control in conjunction with the movement of an operation lever operated by an operation person of the forklift. The lifting control circuit drives the lifting motor in accordance with the voltage value outputted from the chopper. The lifting control circuit of the chopper system can realize multistage speed control of the lifting motor. The chopper system is classified into a simple chopper system and a complex chopper system in accordance with the number of stages of the settable output voltage. In the simple chopper system, two or three stages of output voltage can be set and correspond to lifting speed. In the complex chopper system, three or more stages of the output voltage can be set.
- In the lifting control circuit of a joystick system, a lifting motor is driven in accordance with the movement of a single operation lever operated by the operator of the forklift. In the joystick system, the chopper voltage is adjusted to allow the continuous control of the lifting motor to be realized.
- The contactor system and simple chopper system are mainly used in the U.S. The complex chopper system and joystick system are used in Europe and Japan.
- The running control circuit has the same specification, even if the specifications of the lifting control circuit are different from each other.
- Fig. 1 shows a block diagram of a conventional forklift. Referring to Fig. 1, the
forklift 10 is composed of acontrol substrate 11, a runningmotor 12 and a liftingmotor 13. Thecontrol substrate 11 is composed of arunning control unit 11a and alifting control unit 11b. Thecontrol substrate 11 may be further composed of ajoystick control unit 11c in accordance with the specification of the lifting control. - The running
control unit 11a carries out torque control of the runningmotor 12. The runningmotor 12 realizes the running of theforklift 10. Thelifting control unit 11b detects the movement of a plurality of operation levers to control thelifting motor 13, when the specification of the lifting operation is the contactor system or the chopper system. - The
joystick control unit 11c detects the movement of the joystick to instruct thelifting control unit 11b to drive thelifting motor 13 in accordance with the detection result, when the specification of the lifting operation is the joystick system. - In case that the specification of the lifting operation is a relatively simple contactor system and a simple chopper system, the
running control unit 11a can carry out the process to be carried out by thelifting control unit 11b in place of thelifting control unit 11b. In case that the specification of the lifting operation is the contactor system or the simple chopper system, thecontrol substrate 11 is installed with therunning control unit 11a and/or thelifting control unit 11b. In case that the specification of the lifting operation is the complex chopper system, therunning control unit 11a and thelifting control unit 11b are installed on thecontrol substrate 11. When the specification of the lifting operation is a joystick system, thejoystick control unit 11c is installed on thecontrol substrate 11 in addition to therunning control unit 11a and thelifting control unit 11b. - In the conventional forklift, the running control unit (circuit) 11a, the lifting control unit (circuit) 11b and the joystick control unit (circuit) 11c are installed onto the
single substrate 11. Therefore, when of the substrate is selected in accordance with the specification, the assembly of the running control and the lifting control is manufactured. - However, the substrate is prepared in accordance with the specification to have the
running control unit 11a and thelifting control unit 11b (joystick control unit 11c). Therefore, the reduction of substrate cost through the mass production is difficult, even if the running control circuits are identical to each other. Also, when a fault occurs in either of the running control circuit and the lifting control circuit, the normal circuit is also replaced at the same time. Therefore, the reduction of maintenance cost is difficult. - Therefore, an object of the present invention is to provide a vehicle in which a running control structure and a lifting control structure are separated.
- Another object of the present invention is to provide a vehicle in which the substrate cost can be reduced through mass production effect of the running control structure.
- Still another object of the present invention is to provide a vehicle in which the reduction of maintenance cost can be realized when any fault occurs in either of the running control structure and the lifting control structure.
- In order to achieve an aspect of the present invention, a vehicle includes a running mechanism, a working mechanism, a master unit, a slave unit, and a communication interface. The running mechanism is used for running of the vehicle, and the working mechanism is used for a work by the vehicle. The master unit controls the running mechanism, and the slave unit controls the lifting mechanism. The communication interface carries out establishment and release of electric connection between the master unit and the slave unit.
The slave unit may include a function storage unit, a work control unit and a function notifying unit. The work control unit stores data indicative of a control system of the working mechanism in the function storage unit. The function notifying unit reads out the control system data from the function storage unit to notify the master unit through the communication interface. In this case, the master unit may include a partner checking unit for issuing a function notify request to send to the slave unit through the communication interface. The function notifying unit responds to the function notify request to read out the control system data from the function storage unit to notify the master unit through the communication interface. - Also, the partner checking unit issues the function notify request in response to the start of the vehicle or change of a mode from a stop mode to an operation mode. In this case, the master unit includes a running control unit for controlling the running mechanism, and for monitoring an operation of the vehicle and for changing the mode from the operation mode to the stop mode, when the vehicle is not driven for a predetermined time.
- Also, the master unit may include a running control unit which controls the running mechanism, and a partner setting unit which instructs the running control unit to start control of the work mechanism through the communication interface, when the partner checking unit cannot receive the control system data from the slave unit through the communication interface.
- Also, the work control unit starts control of the work mechanism based on the control system of the working mechanism in response to a control instruction from the master unit through the communication interface, when the master unit issues the control instruction. In this case, the master unit may include a partner setting unit which issues the control instruction to the slave unit through the communication interface, when the control system data is received from the slave unit through the communication interface.
- Also, when the vehicle is a forklift and the working mechanism is a lifting mechanism, the work mechanism has a work motor, and the work control unit controls the work motor in response to an operation instruction. In this case, the slave unit may have an instruction lever for instructing an operation of the lifting motor, and for generating the operation instruction in response to an operation of the instruction lever. Instead, when the slave unit may have a joystick for instructing an operation of the lifting motor, and for generating the operation instruction in response to an operation of the instruction lever.
- Also, the lifting motor may be instructed to carry out a constant speed operation, a multi-stage variable speed operation, or a continuously variable speed operation.
- In the above, it is desirable that the master unit and the slave unit are assembled on different substrates, respectively.
- In order to achieve another aspect of the present invention, a vehicle includes a running mechanism used for running of said vehicle, a working mechanism used for a work by said vehicle, a slave unit provided on a second substrate to control said working mechanism in response to an instruction, and a master unit provided on a first substrate to control said running mechanism and to selectively control said working mechanism based on a function of said working mechanism.
- Also, in still another aspect of the present invention, a method of controlling a working mechanism, is attained by setting a control system of a working mechanism; by communicating between a running controller and a working controller such that a running controller recognizes said control system of said working mechanism; by controlling a running mechanism by said running controller; and by selectively controlling said working mechanism by said running controller or said working controller based on establishment of the communication and said control system of said working mechanism.
-
- Fig. 1 is a block diagram of a conventional forklift;
- Fig. 2 is a block diagram showing the structure of a forklift according to an embodiment of the present invention;
- Fig. 3 is a block diagram showing the structure of a lifting control unit in the forklift according to the embodiment of the present invention; and
- Fig. 4 is a flow chart showing the operation of the forklift according to the embodiment of the present invention.
-
- Hereinafter, a forklift of the present invention will be described below in detail with reference to the attached drawings.
- Fig. 2 shows a block diagram showing the structure of a forklift according to an embodiment of the present invention. Referring to Fig. 2, the
forklift 1 is composed of amaster unit 2, aslave unit 3, a running motor 4 and a liftingmotor 5. - The
master unit 2 is composed of a runningcontrol unit 21, amaster control unit 22 and acommunication control unit 23. Themaster control unit 22 is composed of apartner checking unit 22a and apartner setting unit 22b. Theslave unit 3 is composed of alifting control unit 31, aslave control unit 32 and acommunication control unit 33. Theslave control unit 32 is composed of afunction storage unit 32a and afunction notifying unit 32b. - The
master unit 2 carries out the running control of theforklift 1. The runningcontrol unit 21 carries out the drive control of the running motor 4. The running motor 4 realizes the running operation of theforklift 1 based on the control of themaster unit 2. - The
slave unit 3 carries out the lifting control of theforklift 1. The liftingcontrol unit 31 carries out the drive control of the liftingmotor 5, to execute the lifting operation in the contactor system, the chopper system (simple chopper system and complex chopper system) and the joystick system. The liftingmotor 5 realizes the lifting operation of theforklift 1 based on the control of theslave unit 3. - The
master control unit 22 detects theslave unit 3 connected to the master unit and the specification of the lifting operation corresponding to theslave unit 3. Thecommunication control unit 23 carries out communication with theslave unit 3. For example, thecommunication control unit 23 corresponds to the RS232C standard. The runningcontrol unit 21 can control the lifting operation in the contactor system. - The
slave control unit 32 notifies the specification of theslave unit 3 to themaster unit 2. The specification of theslave unit 3 is previously stored in thefunction storage unit 32a. Thefunction notifying unit 32b notifies the specification stored in thefunction storage unit 32a to themaster unit 2 in accordance with the request from themaster unit 2. Thecommunication control unit 33 carries out communication to themaster unit 2. Thecommunication control unit 23 and thecommunication control unit 33 can be directly connected to each other through a connector. - Fig. 3 is a block diagram of the lifting control unit of the present invention. Referring to Fig. 3, the lifting
control unit 31 is composed ofjoystick control unit 31a, a firstchopper control unit 31b and a secondchopper control unit 31c. Thejoystick control unit 31a is activated to control the lifting operation when the specification of the joystick system is set to theslave unit 3. The firstchopper control unit 31b is activated to control the lifting operation when the specification of the simple chopper system is set to theslave unit 3. The secondchopper control unit 31c is activated to control the lifting operation when the specification of the complex chopper system is set to theslave unit 3. - The specification or control system of the
slave unit 3 is determined based on the function setting by the liftingcontrol unit 31. For example, the function setting is carried out by setting DIP switches (not illustrated) which are provided for theslave unit 3. When either of thejoystick control unit 31a,or the firstchopper control unit 31b or even the secondchopper control unit 31c is selected, the selected information is stored in thefunction storage unit 32a. - The
slave unit 3 may have an instruction lever (not shown) for instructing an operation of the lifting motor, and for generating the operation instruction in response to an operation of the instruction lever. Theslave unit 3 controls the lifting mechanism in response to the instruction. Instead, theslave unit 3 may have a joystick (not shown) for instructing an operation of the lifting motor, and for generating the operation instruction in response to an operation of the instruction lever. Theslave unit 3 controls the lifting mechanism in response to the instruction. In this control, theslave unit 3 controls the lifting motor to carry out a constant speed operation, a multi-stage variable speed operation, or a continuously variable speed operation based on the specification or control system of the lifting mechanism as a working mechanism. On the contrary, themain unit 3 may have a lever (not shown) for instructing an operation of the lifting motor and the running motor. In this case, themain unit 2 controls the lifting motor and the running motor. - Next, referring to Fig. 2 to Fig. 4, the operation of the
forklift 1 according to the embodiment of the present invention will be described. Fig. 4 is a flow chart showing the operation of the forklift according to the embodiment of the present invention. It is supposed in this example that thejoystick control unit 31a of the liftingcontrol unit 31 is selected in theslave unit 3, before theslave unit 3 is connected to themaster unit 2. The information indicative of the specification of the joystick system is stored in thefunction storage unit 32a. - When the
master unit 2 is activated, thepartner checking unit 22a is stated. Thepartner checking unit 22a issues a request to theslave unit 3 through thecommunication control unit 23 to notify a partner (a specification notify request) (S1). When thefunction notifying unit 32b of theslave unit 3 receives the specification notify request, thefunction notifying unit 32b reads out the information stored from thefunction storage unit 32a. Then, thefunction notifying unit 32b notifies the information to themaster unit 2 through thecommunication control unit 33. Thepartner setting unit 22b recognizes the specification of the partner, i.e., the specification of theslave unit 3 based on the information (S2), when receiving the information from the slave unit. Thepartner setting unit 22b notifies the recognized specification to the runningcontrol unit 21. Also, thepartner setting unit 22b transmits the recognition information to theslave unit 3. The partner setting or electric connection between themaster unit 2 and theslave unit 3 is established based on these notifying operation and transmitting operation (S3). It should be noted that thepartner setting unit 22b determines that a connection is not established with theslave unit 3 and instructs the runningcontrol unit 21 to carry out the control based on the contactor system, when the communication with theslave unit 3 through thecommunication control unit 23 cannot be carried out. - The running
control unit 21 switches the operation mode based on the notice from thepartner setting unit 22b (S4). On the other hand, thefunction notifying unit 32b notifies the recognition notice which has been transmitted from themaster unit 2 to thelifting control unit 31. Thejoystick control unit 31a of the liftingcontrol unit 31 is switched to the operation mode. - In case of start of the
forklift 1, the above-mentioned process is carried out. Thus, the setting of the system requirements is realized in accordance with the specification of theslave unit 3. - When the first
chopper control unit 31b of the liftingcontrol unit 31 is set to be valid, theforklift 1 carries out the lifting operation of the simple chopper system. When the secondchopper control unit 31c of the liftingcontrol unit 31 is set to be valid, theforklift 1 carries out the lifting operation of the complex chopper system. When theslave unit 3 is not connected to themaster unit 2, theforklift 1 carries out the lifting operation of the contactor system which is controlled by the runningcontrol unit 21. - The running
control unit 21 monitors the operation of theforklift 1. When any instruction to move the running motor 4 or the liftingmotor 5 is not generated for a predetermined time period, the runningcontrol unit 21 may be switched to a power saving mode or an operation stop mode. The power saving mode is an operation mode in which only the units are operated which are necessary to monitor an operation instruction from the operator. The operation stop mode is a state in which the master power of theforklift 1 is blocked off. When the master power is blocked off, theforklift 1 is set to the operation mode through the process described with reference to Fig. 4. - The present invention is not limited to the above embodiment. In the above embodiment, the forklift is raised as an example of the vehicle. However, if a vehicle has a running system independent from a controlled system, the present invention can be applied. Also, the controlled system is not limited to the motor, and may be a hydraulic pressure mechanism which uses the power of an engine.
- In the embodiment, a slave unit is exemplified to be able to select either of the joystick system, the chopper system and the joystick chopper system. However, the slave unit may be the exclusive use unit of either system. In this case, the operation for selecting a system is not needed. Also, an example in which DIP switches are used to select a system is described. However, the master unit or the slave unit may set a system automatically by detecting an operation lever or joystick.
- In accordance with the present invention, a running control substrate and a lifting control substrate are separated. Therefore, a general purpose running control substrate can be mass-produced so that the cost of the running control substrate can be reduced. Also, in accordance with the present invention, when a fault occurs in either of the running control substrate and the lifting control substrate, only the fault substrate is sufficient to be exchanged. Therefore, the exchanged structure is limited to the substrate in which the fault occurred so that the reduction of the maintenance cost can be realized.
Claims (17)
- A vehicle (1) comprising:a running mechanism (4) used for running of said vehicle;a working mechanism (5) used for a work by said vehicle;a master unit (2) which controls said running mechanism;a slave unit (3) which controls said working mechanism; anda communication interface (23,33) which carries out establishment and release of electric connection between said master unit and said slave unit.
- The vehicle (1) according to claim 1, wherein said slave unit (3) comprises:a function storage unit(32a);a work control unit (31) which stores data indicative of a control system of said working mechanism (5) in said function storage unit;a function notifying unit (32b) which reads out said control system data from said function storage unit to notify said master unit (2) through said communication interface (23,33).
- The vehicle (1) according to claim 2, wherein said master unit (2) includes:a partner checking unit (22a) which issues a function notify request to send to said slave unit (3) through said communication interface, andwherein said function notifying unit (32b) responds to said function notify request to read out said control system data from said function storage unit (32a) to notify said master unit (2) through said communication interface (23,33).
- The vehicle (1) according to claim 3, wherein said partner checking unit (22a) issues said function notify request in response to start of said vehicle or change of a mode from a stop mode to an operation mode.
- The vehicle (1) according to claim 4, wherein said master unit includes:
a running control unit (21) which controls said running mechanism (4), and monitors an operation of said vehicle and changes said mode from said operation mode to said stop mode, when said vehicle is not driven for a predetermined time. - The vehicle (1) according to claim 2, wherein said master unit (2) includes:a running control unit (21) which controls said running mechanism; anda partner setting unit (22b) which instructs said running control unit (21) to start control of said working mechanism (5) through said communication interface, when said partner checking unit (22a) cannot receive said control system data from said slave unit (3) through said communication interface (23,33).
- The vehicle (1) according to claim 2, wherein said work control unit (31) starts control of said working mechanism (5) based on said control system of said working mechanism in response to a control instruction from said master unit (2) through said communication interface (23,33), and
wherein said master unit (2) issues said control instruction. - The vehicle (1) according to claim 7, wherein said master unit (2) includes:
a partner setting unit (22b) which issues said control instruction to said slave unit (3) through said communication interface (23,33), when said control system data is received from said slave unit (3) through said communication interface (23,33). - The vehicle (1) according to claim 7, wherein said vehicle is a forklift, said working mechanism (5) is a lifting mechanism, said lifting mechanism has a lift motor, and said work control unit (31) controls said lift motor in response to an operation instruction.
- The vehicle (1) according to claim 9, wherein said slave unit (3) has an instruction lever for instructing an operation of said lift motor (5), and generating said operation instruction in response to an operation of said instruction lever.
- The vehicle (1) according to claim 9, wherein said slave unit (3) has a joystick for instructing an operation of said lift motor (5), and generating said operation instruction in response to an operation of said instruction lever.
- The vehicle (1) according to claim 9, wherein said lift motor (5) is instructed to carry out a constant speed operation.
- The vehicle (1) according to claim 9, wherein said lift motor (5) is instructed to carry out a multi-stage variable speed operation.
- The vehicle (1) according to claim 9, wherein said lift motor (5) is instructed to carry out a continuously variable speed operation.
- The vehicle (1) according to claim 1, wherein said master unit (2) and said slave unit (3) are assembled on different substrates, respectively.
- A vehicle (1) comprising:a running mechanism (4) used for running of said vehicle;a working mechanism (5) used for a work by said vehicle;a slave unit (3) provided on a second substrate to control said working mechanism (5) in response to an instruction; anda master unit (2) provided on a first substrate to control said running mechanism (4) and to selectively control said working mechanism (5) based on a function of said working mechanism.
- A method of controlling a working mechanism (5), comprising:setting a control system of a working mechanism (5) ;communicating between a running controller and a working controller such that a running controller recognizes said control system of said working mechanism;controlling a running mechanism (4) by said running controller; andselectively controlling said working mechanism by said running controller or said working controller based on establishment of the communication and said control system of said working mechanism.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000029943 | 2000-02-08 | ||
JP2000029943A JP2001220099A (en) | 2000-02-08 | 2000-02-08 | Vehicle having traveling mechanism and cargo handling mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1142826A1 true EP1142826A1 (en) | 2001-10-10 |
Family
ID=18555020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01400312A Withdrawn EP1142826A1 (en) | 2000-02-08 | 2001-02-08 | Vehicle with running mechanism and lifting mechanism |
Country Status (3)
Country | Link |
---|---|
US (1) | US6614196B1 (en) |
EP (1) | EP1142826A1 (en) |
JP (1) | JP2001220099A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5733246B2 (en) * | 2012-03-21 | 2015-06-10 | 株式会社豊田自動織機 | Model identification system |
JP6072869B1 (en) * | 2015-09-11 | 2017-02-01 | ニチユ三菱フォークリフト株式会社 | Control device, vehicle, control method, and control program |
JP6072871B1 (en) * | 2015-09-11 | 2017-02-01 | ニチユ三菱フォークリフト株式会社 | Error output control device, vehicle, error output control method, and error output control program |
WO2023177185A1 (en) * | 2022-03-14 | 2023-09-21 | 현대두산인프라코어(주) | Construction machine and motion method using same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0465793A2 (en) * | 1990-07-09 | 1992-01-15 | Mercedes-Benz Ag | Multiprocessor system for control and diagnostic device in a motor vehicle |
DE4340048A1 (en) * | 1993-11-24 | 1995-06-01 | Bosch Gmbh Robert | Device for exchanging data and method for operating the device |
EP0664273A1 (en) * | 1994-01-19 | 1995-07-26 | FIAT OM CARRELLI ELEVATORI S.p.A. | An electrically driven lift truck |
Family Cites Families (11)
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US3947744A (en) * | 1974-10-21 | 1976-03-30 | Allis-Chalmers Corporation | Electric truck having elevated load potential energy recovery with means to adjust rate of carriage descent |
DE3602510A1 (en) * | 1986-01-28 | 1987-07-30 | Steinbock Gmbh | HYDRAULIC LIFTING |
JP2809095B2 (en) | 1994-03-04 | 1998-10-08 | 株式会社デンソー | Inverter device |
US5610493A (en) | 1995-04-12 | 1997-03-11 | Allen-Bradley Company, Inc. | Terminal configuration for a motor controller |
US5699609A (en) | 1995-04-12 | 1997-12-23 | Allen-Bradley Company, Inc. | Method of making power substrate assembly |
US5729450A (en) | 1995-06-14 | 1998-03-17 | Magnetek, Inc. | Power converter with ripple current and bulk filtering supplied by high-current, high-microfarad film capacitor arrangement |
JP3563835B2 (en) | 1995-07-12 | 2004-09-08 | 光洋精工株式会社 | Power steering device |
KR100433685B1 (en) | 1996-04-18 | 2004-10-06 | 인터내쇼널 렉티파이어 코포레이션 | Power train splitter for 10 horsepower motor controller |
AU2420697A (en) | 1997-02-18 | 1998-09-08 | Steven Belyo | Improved motor control circuitry and circuitry enclosure |
JPH1169840A (en) | 1997-08-22 | 1999-03-09 | Aisin Seiki Co Ltd | Switching assembly |
JP3529673B2 (en) * | 1999-08-25 | 2004-05-24 | 本田技研工業株式会社 | Control device for hybrid vehicle |
-
2000
- 2000-02-08 JP JP2000029943A patent/JP2001220099A/en active Pending
- 2000-11-13 US US09/709,391 patent/US6614196B1/en not_active Expired - Fee Related
-
2001
- 2001-02-08 EP EP01400312A patent/EP1142826A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0465793A2 (en) * | 1990-07-09 | 1992-01-15 | Mercedes-Benz Ag | Multiprocessor system for control and diagnostic device in a motor vehicle |
DE4340048A1 (en) * | 1993-11-24 | 1995-06-01 | Bosch Gmbh Robert | Device for exchanging data and method for operating the device |
EP0664273A1 (en) * | 1994-01-19 | 1995-07-26 | FIAT OM CARRELLI ELEVATORI S.p.A. | An electrically driven lift truck |
Also Published As
Publication number | Publication date |
---|---|
JP2001220099A (en) | 2001-08-14 |
US6614196B1 (en) | 2003-09-02 |
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